Caster.



No. 838,807. PATENTED DEC. 11, 1906. A. B. DISS.

GASTBR.

APPLICATION FILED NOV. 7. 1905.

ALBERT B. DISS, OF NEWARK,

CASTER & FOUNDRY COMPANY, OF NEWARK, NEW

PORATION OF NEW JERSEY.

NEW JERSEY, ASSIGNOR TO UNIVERSAL JERSEY, A COR- CASTER.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed November 7, 1905. Serial No. 286.183-

To all whom, it may concern.-

Be it known that 1', ALBERT B. DISS, a

citizen of the United States, residing at N ewark, in the county ofEssex and State of New 1 Jersey, have invented a new and useful Im- Irovement in Casters, of which the following is a specification. i

In casters as usually constructed the part carrying the wheel or rollerand to the center of which the lower end of the pintle is secured, andwhich part is designated as the jaws, is either formed of castmetal oris cupped up from a blank stamped out of sheet metal. These latter areordinarily a simple yoke, with which the pintle has only a single pointof support; and the object of my invention is the formation of the jawstructure to be cupped up and formed from a blank or blanks of sheetmetal of the construction simulatinga box-frame through which the pintlepasses and in which the same is pro vided with two points of bearing andsup 'ort. P In carrying out my invention the blank of sheet metal has acentral portion in part circular, with lugs at one side, while from theother side project two jaw members at an .is'cupped up to shaimprovement.

obtuse angle to one another, whose free ends are perforated and aprojection centrally between these members from the edge of whichextends a lug. The central part of the blank is perforated for theintle, and I provide an auxiliary blank, whic when the main blank e fitswithin and against .the same and is hel thereto by the aforesaid lugs,which are bent over upon the surface of the auxiliary blank. Thisauxiliary blank is centrally perforated for the pintle.

In the drawings, Figure 1 is a vertical section and partial elevation,and Fig. 2 an inverted plan representing the device of my Fig. 3 is aplan of the preferred formof sheet-metal blank. Fig. 4 is an invertedplan, and Fig. 5 a vertical section and partial elevation, of this blankcupped u to shape. auxiliary lank, and Fig. 7 a plan of a modified formof sheet-metal blank.

The caster-wheel a is of ordinary and wellknown character, and the intlec and furniture-leg d are also of or inary and wellknown character.

brepresents the jaw members, and b the jaw-frame. frame are first formedas a blank stamped Fig. 6 is a plan'of the -The jaw members and jawoutof sheet metal, and Fig. 3 shows the preferred form of this blank, inwhich there is a central circular portion 2, a central perforation 3,lugs 4 at one side of the blank, and from the other side oft-he blankthe jaw members b project at an obtuse angle to one another, with thefree ends perforated to receive the pivot-pin of the caster-wheel, andbetween these jaw members b there is a projection 5 of the blank with acentral lug 6.

The process of cupping up the blank is of course gradual; but w encupped up the jaw members I) and the rim of the circular central portion2 form, as shown in Figs. 4 and 5, a continuous wall, in which the jawmembers b.

are parallel to one another and the connecting-wall'semicucular, thecentral portion of the blank around the hole for the pintle bein flatand substantially at right angles to the jaw members and this back wall,and the parts as cuppedup form an inverted-cup.

configuration.

The projection-5 is drawn at right angles to the flat portionsurrounding the hole of the pintle and comes between the jaw members,

and the auxiliary blank 6, stamped up from sheet metal, as shown in Fig.6, is rovided with a central hole for the pintle, Wit a recess at 7 anda lug at 8, the said auxiliary blank fitting within the cupped-upportion of the main blank, as shown in Figs. 1 and 2, the lug 6 beingreceived in the recess.7 and the lug 8 in the recess between the lugs 4.The lug 6 being bent over upon thesurface of the auxiliarv blank e holdsthe same against the walls formed at the end ofthe projection 5. Thelugs 4 are also at the opposite side of the auxiliary blank bent overupon the outer face thereof, so as to hold the lug S with force, of theblank between e imparted to this auxagainst the wall edge said lugs, andthe sha iliary blank is such t at this outer edge fits snugly within thesemicircular wall and adjacent portions of the parallel walls of the jawmembers, and the pintle is assed through the holes of the auxiliary bank and main blank, so that its head bears against the outer surface ofthe auxiliary blank in the position shown in Figs. 1 and 2. Thisstructure forms a very rigid support for the lower end of the pintle andbase, from which the parallel jaw members 1) project to their connectionwith the caster-wheel, and the manner of attaehing the auxiliary blankto the main blank secures the auxiliary blank firmly and permanently inposition, and the fact that there are two bearing-points for the pintleinsures the pintle maintaining the right relation to the easter-wheeland jaw-frame and prevents a looseness or wabbling of the same, whichwould cause unnecessary wear at the union of the pintle with theaw-frame.

In the structure shown in Fig. 7 the main blank is almost identical withthe blank shown in Fig. 3, except that between the lugs 4 of the formshownin Fig. 7 there is a V- shaped notch 9. In cupping up the mainblank it is somewhat easier to cup up the blank shown in Fig. 7 than theblank shown in Fig. 3, and when the blank shown in Fig. 7 is cupped upthe edges of the V-shaped notch 9 are brought closely together, so thatin the cupped-up article there is only a line through the metal; but thesame is not as strong or as acceptable in its form as the structurecupped up from Fig. 3.

- I do not herein limit myself to the number or location of theconnecting-lugs and recesses employed, respectively, upon the main andauxiliary blanks.

I claim as my invention 1. 1n aeaster, the combination with thecaster-wheel and pintle, of jaw members and a jaw-frame cupped up from ablank stamped out of sheet metal so as to form a hollow structure inwhich there is a straight rim of circular formation from which theparallel hers extend as prolongations, and an auxiliary blank receivedwithin the cupped-up portion of the main blank, and means for connectingthe main. and auxiliary blanks, the pintle assing through theerforations in both blanks which provide t e same with twobearing-points.

3. Ina caster, the combination with the caster-wheel and pintle, of jawmembers and a jaw-frame cupped up from a blank stamped out of sheetmetal so as to form a hollow structure, in which there is a rim ofcircular formation from which the parallel jaw members extend asprolongations, said blank having a central be e for the pintle,projections 4 at formation from which the parallel jaw memhers extend asprolongations, said blank having a central hole for the pintle,projections 4 at one side, a projection 5 and lug 6 at the 0ppositesides, an auxiliary blank having a curved edge and a straight edge, arecess 7 and lug 8 and adapted tofit within the curved portion of themain blank and its straight edge to rest u on the edge of theprojectioni5, the lug 6 of t 10 main blank being received in the recess7 of the auxiliary blank and overturned, and the lug 8 of the auxiliaryblank received between the said lugs t of the main blank and the latterlugs overturned upon connecting the parts ALBERT B. DISS Witnesses:

Gno. T. PINCKNE E. ZACIIARIASEN

